#include<bits/stdc++.h>

using namespace std;

int main() {
    double pi = atan(1.0) * 4;
    cout << sqrt(2) << endl;
    cout << pow(2, 0.5) << endl;
    cout << pow(2, 1.0 / 3) << endl;
    cout << sin(30 / 180.0 * 3.1415926) << endl;
    cout << "pi=" << atan(1.0) * 4 << endl;
    cout << "pi=" << acos(-1.0) << endl;
    cout << "e=" << exp(1.0) << endl;
    cout << "1.01^365=" << pow(1.01, 365) << endl;
    cout << "0.99^365=" << pow(0.99, 365) << endl;
    cout << "1.0005^365=" << pow(1.0005, 365) << endl;
    cout << "1.0001^365=" << pow(1.0001, 365) << endl;
    cout << "ln(10)=" << log(10) << endl;
    cout << "log(10)=" << log10(10) << endl;
    cout << "ceil(3.5)=" << ceil(3.5) << endl;
    cout << "floor(3.5)=" << floor(3.5) << endl;

    return 0;
}
